Thill-coupling



(No Model.)

R. .J. MITCHELL.

. THILL COUPLING. I No. 253,411. PatentedT b. 7,1882.

WITNESSES: f INVENTOR:

- ATTORNEYS.

N, PETERS. mmmm om Wishln'lm. D. (2.

UNITED STATES PATENT OFFICE.

ROBERT J. MITCHELL, OF GIRARD, ILLINOIS.

THIL'L-COUPLING.

SPECIFICATION forming part of Letters Patent No. 253,411, dated February7, 1882'.

Application filed November 29, 1881. (No model.)

To all whom it may concern:

Be it known that I, ROBERT J. MITCHELL, of Girard, Macoupin county,Illinois, have invented a new and useful Improvement inThill- Couplings,of which the following is a full, clear and exact description.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional side elevation of my improvement. Fig. 2 is aplan view of the same.

I Fig. 3 is a front elevation of the same, the thilliron being removed,and Fig. at is a perspective view of the elastic packing.

The objeotof this in'ventionis to prevent the rattling of ordinarythill-couplings.

A represents the bow, B the yoke, C the lugs, D the thill-iron, and Ethe coupling-bolt, of an ordinary thill-coupling.

F is a block made of rubber or other elastic 'material in triangularform, and with its face concaved to fit upon the eye of the thill-iron'D the upper end of the bolt H is screwed a nut, J. With thisconstruction, when the nut J is screwed down the elastic packing F ispressed downward and slightly forward, so as to hold the thill-iron Dfirmly in place and entirely prevent rattling. With this construction,also, the pressure against the thill-iron can be increased and lessenedby screwing the nut J down and K is a plate, of leather or othersuitable material', interposed between the rubber packing F add thethill-iron D to take the wear, and which has its lower end notched toreceive the bolt H. The leather plate K is made thin at its upper endand thickeratits lower end, and

is made of such a length that its lower end will ROBERT J. MITCHELL.

Witnesses:

J OHN BELLAMY, Laws C. ERWIN.

